<template>
  <div>
    <nav-bar>
      <div slot="left" class="back" @click="backclick">
      <img src="~assets/img/common/back.svg" alt="">
      </div>
      <div slot="center"
           class="title">
        <div v-for="(item,index) in titles"
             class="title-item" :class="{active:currentIndex===index}" @click="titleclick(index)">{{ item }}
        </div>
      </div>
    </nav-bar>
  </div>
</template>

<script>
import NavBar from "components/common/navbar/NavBar";

export default {
  name: "detailNavBar",
  components: {NavBar},
  data() {
    return {
      titles: ['商品', '参数', '评论', '推荐'],
      currentIndex: 0
    }
  },
  methods:{
    titleclick(index){
      this.currentIndex = index
      this.$emit('titleClick',index)
    },
    backclick(){
      this.$router.back()
    }
  }
}
</script>

<style scoped>
.title {
  display: flex;
  font-size: 13px;
}

.title-item {
  flex: 1;
}
.active{
  color: var(--color-high-text);
}
.back img{
  margin-top: 12px;
}
</style>
